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A passage; esp., the passage between the third and fourth ventricles in the brain; the aqueduct of Sylvius.

One of a series of organic bases obtained by the reduction of certain isonitroso compounds of the ketones. In general they are unstable oily substances having a pungent aromatic odor.

other, organized, with Charles Stewart Parnell as president, in 1879 with a view to the reduction of farm rents and a reconstruction of the land laws. -- Land"*lea`guer (#), n. -- Land"*lea`guism (#), n.

ught by an express effort; instruction derived from precept, experience, observation, or deduction; a precept; a doctrine; as, to take or give a lesson in drawing." A smooth and pleasing lesson." Milton. Emprinteth well this lesson in your mind. Chaucer.

A colorless, crystalline, organic base, obtained from rosaniline by reduction, and also from other sources. It forms colorless salts.

pecif. (Chem.), denoting an extensive series of colorless organic compounds, obtained by reduction from certain other colored compounds; as, leucaniline, leucaurin, etc.

The act of literalizing; reduction to a literal meaning.

umbers drawn from the wheel takes the stakes after a certain percentage of them has been deducted for the dealer. A variety of lotto is called keno. [Often written loto.]

An element obtained by reduction of its oxide, as a hard, grayish white metal, fusible with difficulty, but easily oxidized. Its ores occur abundantly in nature as the minerals pyrolusite, manganite, etc. Symbol Mn. Atomic weight 54.8.

A metallic element mostly obtained by reduction from cinnabar, one of its ores. It is a heavy, opaque, glistening liquid (commonly called quicksilver), and is used in barometers, thermometers, ect. Specific gravity 13.6. Symbol Hg (Hydrargyrum). Atomic weight 199.8. Mercury has a molecule which consists of only one ato…

alternately with sifting and sorting the product. -- Low milling, milling in which the reduction is effected in a single crushing or grinding. -- Milling cutter, a fluted, sharp-edged rotary cutter for dressing surfaces, as of metal, of various shapes. -- Milling machine, a machine tool for dressing surfaces by rot…

A wrong consequence; a false deduction.

To attain in value; to amount. Bring then these blessings to a strict account, Make fair deductions, see to what they mount. Pope.

With all deductions or allowances made; net.

A reduction in size near the end of an object, formed by a groove around it; as, a neck forming the journal of a shaft.

ous, incidental, or foreign matter, as boxes, coverings, wraps, etc.; free from charges, deductions, etc; as, net profit; net income; net weight, etc. [Less properly written nett.] Net tonnage (Naut.), the tonnage of a vessel after a deduction from the gross tonnage has been made, to allow space for crew, machinery, et…

A complex, oily, nitrogenous base, isomeric with nicotine, and obtained by the reduction of certain derivatives of the pyridine group.

Reduction to a standard or normal state.

Something taken off; a deduction.

A white crystalline nitrogenous substance (C6H4N4O5) obtained by the reduction of parabanic acid; -- called also leucoturic acid.